Updated ReadMe
Added notebooks
Moved company calculations back to the companies themselves
Added profit and cost calculations to station dispatch
Modularised a number of energy and reserve profit calculations in the stations module
Fixed querying, very kludgy
Aggregated profit calculation added
Added an underscore
IL cost and revenue calcs
removing a space
Merge branch 'feature/refactor' into develop
aggregated profit and loss function
Updated method of company profits
Some brief docstrings
Generator bug fix
Brief refactor